Asus has started rolling out a New software update for ZenFone Max Pro M1 (Review with build 15.2016.1805.309 which is 397.23 MB.

Changelog include VoLTE for Vodafone/Airtel/Idea, Updates Google security patch to May'18
Improves the response speed of fingerprint sensor and Improves front camera performance. You can check for the latest FOTA update under Settings > System > System Update.

Asus Zenfone Max Pro M1 comes with Metal body, Fingerprint Scanner on the Rear. It has a 5.99-inch (2160×1080 pixels) Full HD+ 18:9 2.5D curved glass display powered by 1.8GHz Octa-Core Snapdragon 636 Processor. On Camera, it has a 13 Megapixel primary camera along with 5 Megapixel depth-sensing camera and 8MP front-facing camera both have LED Flash. Packed with a 5000mAh battery